XML External Entity Expansion (XXE) Vulnerability in lucene-solr
Summary
DLA-1360-1: lucene-solr - security update. Affects lucene-solr versions < 3.6.0+dfsg-1+deb7u4. Fixed in 3.6.0+dfsg-1+deb7u4. How to fix ↓
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Background
lucene-solr is a search engine library for Java. It provides powerful indexing and searching capabilities for applications. The library is widely used in various domains, including e-commerce, content management systems, and data analytics. However, a vulnerability has been discovered in lucene-solr that allows for XML external entity expansion (XXE) attacks.
Vulnerability Detail
The XXE vulnerability in lucene-solr allows an attacker to exploit XML parsing functionality to read arbitrary local files from the Solr server or the internal network. By injecting specially crafted XML input, an attacker can trigger the parsing process to fetch sensitive files, potentially exposing confidential information or facilitating further attacks. This vulnerability poses a significant risk to the confidentiality and integrity of data processed by lucene-solr.
How To Fix
Minimum fixed version
3.6.0+dfsg-1+deb7u4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade lucene-solrTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading to the patched version of lucene-solr.
Conclusion
The XXE vulnerability in lucene-solr poses a significant risk to the security and integrity of systems utilizing this library. It is crucial to upgrade to the patched version to protect against potential attacks. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for lucene-solr →
FAQ
lucene-solr is a search engine library for Java that provides indexing and searching capabilities for applications.
An XXE vulnerability allows an attacker to exploit XML parsing functionality to read arbitrary local files or perform other malicious actions.
By injecting specially crafted XML input, an attacker can trigger the parsing process to fetch sensitive files from the Solr server or internal network.
This vulnerability can lead to unauthorized access to sensitive information, data leakage, and potential further exploitation of the affected system.
Yes, upgrading lucene-solr to version 3.6.0+dfsg-1+deb7u4 or later includes the necessary security patches to mitigate the XXE vulnerability.
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